Standard:Din914/Din915/Din916
Specification: M3-M20 or Custom
Material: 35K,45#, 40Cr (SAE1045, 5140), SS304,SS316
Productive Process: Wire rod→Anneal→Acid cleaing→Draw wire→molding and rolling thread→Heat treatment→Surface treat →Packing
Surface treat: Plain,Black oxide,Blue white zinc,Yellow zinc,Hot dip galvanized,Copper plating,Gold plating,Chromium Plating.
Quality Control:Raw material inspect→process monitoring→Product test→Packaging check
Certification: ISO9001:2008
Packaging:prod...